Battery boxes are a great way to conceal the battery for your front wired AEG's, whether you are converting your standard carbine to a rail system and want to keep easy battery access on the front of your rifle or wanting a larger battery an external battery box is the best solution.FEATURESCompatibility:For most Airsoft AEG Rifles with 20mm Accessory RailsMaterial: Polymer0-72332

For Classic Army, A&K, Echo1 and other M249 series Airsoft AEG. (Wiring to the back)These wiring assembly are made by RC experts making them much stronger and better over the stock M249 wiring. Great replacement and upgrade parts.Manufacture: Matrix / A&K0-WIRING-MTX-M249-B

The Pro-Arms AEG Motor connectors are Gold plated for better conductivity and lower resistance which can lead to higher performance. They are also designed with a special snap feature to create a more secure attachment to your motor leads.Length: 13mm/40mm (connector / shrink tubing)Material: Gold Plated Metal AlloyPackage Includes: 4x Gold Plated Connectors, 2x Shrink Tubing PiecesManufacturer: Pro-Arms0-WIRING-PA-GOLDMS